Question

【题目】 I know, he has no brother or sisters.

A. As long as B. As far as C. As much as

Answer 1

【答案】B

【解析】句意：据我所知，他没有兄弟姐妹。as long as只要；像...一样长；as far as据...，就...；和...一样远；as much as和...一样多。as far as I know是固定短语，据我所知，故应选B。